source/nmbsync.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 1.9.
   4    NBT netbios routines to synchronise browse lists
   5    Copyright (C) Andrew Tridgell 1994-1997
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20
  21 */
  22
  23 /* We *must have REPLACE_GETPASS defined here before the includes. */
  24 #define REPLACE_GETPASS
  25 #include "includes.h"
  26
  27 extern int DEBUGLEVEL;
  28
  29 extern pstring myname;
  30
  31 extern int name_type;
  32 extern int max_protocol;
  33 extern struct in_addr dest_ip;
  34 extern int pid;
  35 extern int gid;
  36 extern int uid;
  37 extern int mid;
  38 extern BOOL got_pass;
  39 extern BOOL have_ip;
  40 extern pstring workgroup;
  41 extern pstring service;
  42 extern pstring desthost;
  43 extern BOOL connect_as_ipc;
  44
  45 /****************************************************************************
  46 fudge for getpass function
  47 ****************************************************************************/
  48 char *getsmbpass(char *pass)
  49 {
  50         return "dummy"; /* return anything: it should be ignored anyway */
  51 }
  52
  53 /****************************************************************************
  54 adds information retrieved from a NetServerEnum call
  55 ****************************************************************************/
  56 static BOOL add_info(struct subnet_record *d, struct work_record *work, int servertype)
  57 {
  58   char *rparam = NULL;
  59   char *rdata = NULL;
  60   int rdrcnt,rprcnt;
  61   char *p;
  62   pstring param;
  63   int uLevel = 1;
  64   int count = -1;
  65
  66   /* now send a SMBtrans command with api ServerEnum? */
  67   p = param;
  68   SSVAL(p,0,0x68); /* api number */
  69   p += 2;
  70   strcpy(p,"WrLehDz");
  71   p = skip_string(p,1);
  72
  73   strcpy(p,"B16BBDz");
  74
  75   p = skip_string(p,1);
  76   SSVAL(p,0,uLevel);
  77   SSVAL(p,2,BUFFER_SIZE - SAFETY_MARGIN); /* buf length */
  78   p += 4;
  79   SIVAL(p,0,servertype);
  80   p += 4;
  81
  82   pstrcpy(p, work->work_group);
  83   p = skip_string(p,1);
  84
  85   if (cli_call_api(PTR_DIFF(p,param),0, 8,BUFFER_SIZE - SAFETY_MARGIN,
  86                    &rprcnt,&rdrcnt, param,NULL,
  87                    &rparam,&rdata))
  88     {
  89       int res = SVAL(rparam,0);
  90       int converter=SVAL(rparam,2);
  91       int i;
  92
  93       if (res == 0)
  94         {
  95           count=SVAL(rparam,4);
  96           p = rdata;
  97
  98           for (i = 0;i < count;i++, p += 26)
  99             {
 100               char *sname = p;
 101               uint32 stype = IVAL(p,18) & ~SV_TYPE_LOCAL_LIST_ONLY;
 102               int comment_offset = IVAL(p,22) & 0xFFFF;
 103               char *cmnt = comment_offset?(rdata+comment_offset-converter):"";
 104
 105               struct work_record *w = work;
 106
 107               DEBUG(4, ("\t%-16.16s     %08x    %s\n", sname, stype, cmnt));
 108
 109               if (stype & SV_TYPE_DOMAIN_ENUM)
 110                 {
 111                   /* creates workgroup on remote subnet */
 112                   if ((w = find_workgroupstruct(d,sname,True)))
 113                     {
 114                       announce_request(w, d->bcast_ip);
 115                     }
 116                 }
 117
 118           if (w)
 119                 add_server_entry(d,w,sname,stype,lp_max_ttl(),cmnt,False);
 120             }
 121         }
 122     }
 123
 124   if (rparam) free(rparam);
 125   if (rdata) free(rdata);
 126
 127   return(True);
 128 }
 129
 130
 131 /*******************************************************************
 132   synchronise browse lists with another browse server.
 133
 134   log in on the remote server's SMB port to their IPC$ service,
 135   do a NetServerEnum and update our server and workgroup databases.
 136   ******************************************************************/
 137 void sync_browse_lists(struct subnet_record *d, struct work_record *work,
 138                 char *name, int nm_type, struct in_addr ip, BOOL local)
 139 {
 140   uint32 local_type = local ? SV_TYPE_LOCAL_LIST_ONLY : 0;
 141
 142   if (!d || !work ) return;
 143
 144   if(d != wins_subnet) {
 145       DEBUG(0,
 146         ("sync_browse_lists: ERROR sync requested on non-WINS subnet.\n"));
 147       return;
 148   }
 149
 150   pid = getpid();
 151   uid = getuid();
 152   gid = getgid();
 153   mid = pid + 100;
 154   name_type = nm_type;
 155
 156   got_pass = True;
 157
 158   DEBUG(0,("sync_browse_lists: Sync browse lists with %s for %s %s\n",
 159             name, work->work_group, inet_ntoa(ip)));
 160
 161   strcpy(workgroup,work->work_group);
 162   fstrcpy(desthost,name);
 163   dest_ip = ip;
 164
 165   if (zero_ip(dest_ip)) return;
 166   have_ip = True;
 167
 168   connect_as_ipc = True;
 169
 170   /* connect as server and get domains, then servers */
 171
 172   sprintf(service,"\\\\%s\\IPC$", name);
 173   strupper(service);
 174
 175   if (cli_open_sockets(SMB_PORT))
 176     {
 177       if (cli_send_login(NULL,NULL,True,True))
 178       {
 179             add_info(d, work, local_type|SV_TYPE_DOMAIN_ENUM);
 180         if(local)
 181           add_info(d, work, SV_TYPE_LOCAL_LIST_ONLY);
 182         else
 183           add_info(d, work, SV_TYPE_ALL);
 184       }
 185
 186     close_sockets();
 187   }
 188 }